Service Information Management Of WAN Storage Resources

With the emergence of massive WAN-Scale network storage system comes the complexity of storage resources. WAN storage system has more storage resources which are heterogeneous and distributed widely. Researches on management of storage resources in WAN become important. How to manage service information of storage resources efficiently is one of the key technologies of storage resources management in WAN.Design and optimize service information management system of WAN storage management system. WAN storage management system is conformed to SMI-S and uses Service Location Protocol in its resource discovery system. Design the framework of service information management system after analyzing deficiency of Service Location Protocol. Service information management consists of describing, storing and querying service information. In order to describe various storage information and make the information scalable and exchangeable, use XML to describe it. To achieve a high quality management of service information which has been changed to XML documents, use XML database named eXist to store and query it.Query performance is the ability of answering service queries; optimizing it can optimize the performance of service information management system. It is an approach to optimize query performance of XML database. Analyze work flow of query in eXist database and find that path index can reduce response time to XML path query, then reduce the response time to service query and improve system performance. Test results show that eXist database has a better performance after adding a path index.